vegetative 



ventral 



of the apical end of the microspore 

 cut oif by a septum on germination ; 

 /^ Cone, the apex of the shoot, a 

 conical protuberance ; --' Division, 

 heterotypic nuclear division ; -^ 

 Nu'clene, any pollen-tube nucleus 

 which does not take an active part 

 in fertilization ; '- Origans, those 

 concerned with the growth of the 

 plant, not the reproduction ; -- pro- 

 p'agative Cells, in German * ' Brut- 

 zeDen" = GoNiDiA ; '-- Eeproduc'- 

 tion, asexual increase, as by detached 

 buds, gemmae, bulbils, etc. ; vege- 

 tistlc, relating to plants ; ve'ge- 

 tive, having the nature of plants ; 

 Vegetom'eter {fxirpov, a measure) ; 

 electro- ~, apparatus for applying 

 electric currents to growing crops 



Vehic'ulnm (Lat., a conveyance), 

 Necker's term for the stigmatic 

 secretion. 



Veil = (1) Velum ; (2) Calyptra of 

 Mosses. 



Vein (as distinct fi'om a Nerve), 

 a strand of vascular tissue in a 

 flat organ, as a leaf; cos'tal '*', 

 or pri'mary ~ , such as spring from 

 the midrib; exter'nal '~, a vein 

 close to the margin ; veined, fur- 

 nished with or traversed by fibro- 

 vascukr bundles, especially if 

 divided or reticulated ; Vein'ing, 

 the general arrangement of the 

 veins ; vein'less, destitute of veins ; 

 Vein'let, a small vein, the ultimate 

 division of a vein ; Vein'ulet, a 

 branch of a veinlet (Crozier). 



Vela'men (Lat., a covering), or '^ 

 Badi'eum, a parchment-like sheath 

 or layer of spiral-coated air-cells on 

 the roots of some tropical epiphytic 

 Orchids and Aroids ; velamina'ris, 

 when an anther dehisces by rolling 

 up one side of a cell from base to 

 apex ; ve'late, v€?«'<U5(Lat.), veiled; 

 Telo'sus, applied to Agarics ; not 

 Latin, and presumably a blunder 

 for velatus, veiled. 



Veld, or Veldt, the tree-steppe or 

 African savannah in South Africa. 



Vel'lui (Lat., a fleece), the stipe of 

 some Fungi. 



Ve'lnm (Lat., an awning), (1) a 

 special envelope in Agarics within 

 which the growth of the sporo- 

 phore takes place ; (2) by Persoon 

 applied to the Cortina ; (3) the^ 

 membranous indusium in Isoetes 

 (A. Braun) ; -^ partia'le, marginal 

 veil ; r^ nniversa'le = Volva. 



Ve'lumen (Lat., a fleece), close, short, 

 soft hairs. 



velu'tinous, velu'tinus, vehUino'stts 

 (Mod. Lat.), velvety, due to a coat- 

 ing of fine soft hairs ; vel'vety, an 

 equivalent of the same. 



Ve'na (Lat, a vein), a fein ; Ve'nae 

 ezter'nae, white veins seen in some 

 Gasteromycetes and Tuberaceae in 

 sections of the sporophore, produced 

 by air tissue in the sporiferous 

 chambers ; -^ inter'nae, '~ lymph- 

 at'icae, dark-coloured veins, in the 

 same group of Fungi, denoting the 

 walls of the sporiferous chambers, 

 but destitute of air ; Vena'tion, the 

 mode of veining. 



venena'tus (Lat), poisonous, venom- 

 ous. 



venenif'erous {vemnifer, containing 

 poison), bearing poison. 



vene'nose, veneno'sus (Lat.), very 

 poisonous. 



ve'nose, veno'sus (Lat., veiny), having 

 veins ; veno'so-nervo'sus % when 

 the ji'imary veins branch and unite 

 irregularly. 



Ven'ter (Lat., the belly), (1) the ex- 

 panded basal portion of an arche- 

 gonium in which the oosphere is 

 formed ; (2) by T. J. Parker applied 

 to the Ovary. 



ventila'ting (ventilo, I fan) Pits, in 

 certain Ferns, resembling lenticels, 

 and jToba'bly pneumathodes (Hal)or- 

 landt); -^ Tiss'ue, used for the 

 spongy parenchyma of the leaf. 



ventilato'rious {ventilator, a win- 

 nower), flabellate, fan-shaped. 



ven'tral, vmtra'Us (Lat., pertaining 

 to the belly), (1) the anterior or 

 inner face of a carpel, opposed to 

 dorsal ; (2) relating to the Venter ; 

 '- Canal'-cell, a small cell in the 

 archegonium cut off from the apex 



403 



